https://github.com/runekaagaard/django-multiple-choices

Django model field that can select multiple choices and stores them as a bitmask value in the database.
https://github.com/runekaagaard/django-multiple-choices

Last synced: 11 days ago
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Django model field that can select multiple choices and stores them as a bitmask value in the database.

• Host: GitHub
• URL: https://github.com/runekaagaard/django-multiple-choices
• Owner: runekaagaard
• License: agpl-3.0
• Created: 2022-04-11T14:42:02.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-04-12T15:32:28.000Z (over 2 years ago)
• Last Synced: 2024-11-07T11:48:20.400Z (2 months ago)
• Language: Python
• Size: 41 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# django-multiple-choices

Alternative to https://github.com/disqus/django-bitfield and https://github.com/goinnn/django-multiselectfield/

- Works on MySQL (postgres not tested)

- Stores the selected value as a bitmask value which allows for fast db access

- Admin support

- Custom `mc_in` and `mc_notin` query lookups

- One file

# Usage

Import it and stick it on a model:

```

from django.db import models

from multiple_choices import MultipleChoicesModelField

LIKES = ((0, "Pizza"), (1, "Juice"), (2, "Beef"), (3, "Beer"), (4, "Milk"))

class Person(models.Model):

    likes = MultipleChoicesModelField(choices=LIKES, required=True)

```

Both the `choices` and the `required` props are required.

Two new query lookups `mc_in` and `mc_notin` are available:

```

Person.objects.filter(likes__mc_in={0, 1}) # Persons who like pizza and juice

Person.objects.filter(likes__mc_notin={4}) # Persons who doesn't like milk

```

Exact searching goes like this:

```

Person.objects.filter(likes={2}) # Persons who only likes beef

```

# Installation

Copy `multiple_choices.py` somewhere on your python path.